Improvement in electric lighting apparatus



Patehted May 23,1871.

` 4M. Mara A P BERLIQZ ,lmpiovmentn Electric Lighting Apparatus..l

`115,inr.

:PATENT OFFicE.

UNITE@ STATES Anousrnfrnosrnn nnntioz, or Panis, Farines. ,i

lMPaovtMENTIN ELE'rRlc tyeH-rme APPARATUS'.

Specification forming partof` Letters Patent 11,154, dated May 23,1871;

I, AUGUSTE PRosrERY BirnLIoz, manager of Alliances Societyfin Faris, Empire of France, have invented a System of Lighting Appara` r tus, of which the following is Aa specification:

lltftmc and Object ofthe Invention.

My invention consists of an electrical lighti 1n g apparatus, fully described hereafter, which may be employed at sea to avoid collisions at nightor during fogs, orbe used in making all combinations of signals. The apparatus will also vbe found useful on land in time of warmfor signaling or for observing the movements of the enemy in the field, te.; and may be.l em- `ployed, in fact, Wherever an intense'and extended light isrequired.

Description of `the Accompanying Drawg.

The drawing represents, by way of example, one form of apparatus especially adapted for use on board ship, it' being mounted upon a pedestal, as hereafter described, in such a manner asto permit the light to be directed to any angle, either horizontal o r vertical. Y, y

V'Figure lis an exterior elevation of the apparatus; Fig. 2,'a vertical section of tle same through. the axis Fig. 3, a sectional plan view on thel1ne l 2, Fig.`2; and Fig. 4, a perspective view of the apparatus reduced.

General Description.' The exterior casing of the apparatus conf sists of a cast-metal cylinder, C, this form having been found best adapted for the reception ofthe devices necessary in service. The pivots at theopposite `sides of this cylinder are mounted in standards c, which'rest upon a metallic cap, p, the latter being attached by a vertical pivot to the cast pedestal l?, which is placed upon a platform, P?, fastened to the deck ofthe vessel. To retain the cylinder C at any angle to which it may be adjusted in the vertical planeone of its pivots is provided with a handled bolt orfscrew, M, Fig. 3, which serves topress the said cylinder against the supports c,and thus prevent it from turning. ldhecylinder is closedat the back by a copper plate, dfin the center of which is a rectangular door, d", that opens to enable the lamp or `electric lig-ht Ato be Withdrawn.` The front ofthecylinder is closed by a glass, D, fixed in aframe hinged at 1D and kept closed byineans' antedated` May 17, 1871 of a hook or Aswinglngpiece, b, furnished with a thumb-screw. The glass lD thus protects the lens L, consisting of rings, which is arranged in the manner of the little voltaic are of the electric light, and the eect of which is to give the greatest intensity to the latter. The rin gs.

of this lens are iixed in a cross-radial support, which is connected to a metal ring, l, held by screws in a groove of the cylinder G. The regulatoror electric lamp A is completed by a small reiector, R, mounted upon a rod, c, attached to the said lamp, so that, if the latter is moved in its guides to give more or less divergence to the light, the said reector remains always at its focus. The reector is mounted i in such a manner as to turn upon the rod a so as to carry into the axis of the charcoal points or pencils a sort of disk, o', which thus serves for centering the said pencils. (See dotted lines.) vAs soon as the center is thus obtained placed in one of the pivots of the cylinder, and

intended to show outwardly upon an unpolished glass, situated at k, the image of the charcoal points. Upon this glass there is an indeigservingl to facilitate theplacing of the light to the focal point. The` conducting threads ofthe currents furnished by the mag-` netoelectric machine are passed into the inte rior of one ot' the supports of the cylinder (l, so that they may not be injured `by the salt Water, Which might sometimes break the current.` At y, Fig. 3, is seen one of the threads, which terminates ion a spring rubber.

The apparatus may be turnedto any extent in tlie horizontal plan, a-nd can also be adjusted to any angle vertically on loosening the handled screw M.

To. aid in the management ofthe apparatus "two strong handles, g g', Fig. 3, are.Y iastcned to the plate d ofthe cylinder, f Thefapparatus, constructed; as 'above de" scribed, or slightly modiiied, can be used upon land, as before mentioned, aswell as upon vessels.

Claims.

l. An electric illuminating apparatus consisting of a case, C, having near one end a lens, L, and contalning an adjustable stand,

'which supports adjustable carbon-pencils, and

an adjustable reflector, R, all substantially as described.

2. The said case and its contents, in combination with a stand, l?, on which the said case is adjustable, as described, and through which extend the Wires leading to the battery,

as set forth.

3. The adjustable arm carrying the disk 1', farranged adjacent to the carbon pencils, for

the purpose described.

4. The tube K and its glass, in combination with the case C and the carbon points, as and for the purpose specified.

5. The lens, consisting in whole or in part of independent rings of glass secured to radial supports, as set forth.

6. The lamp A, adjustable in the case G by means of the screw V, or its equivalent, substantially as set forth.

In testimony whereof I have signed my name to this specification in the presence of two subj scribing witnesses.

AUGUSTE PROSPER BERLIOZ. [Ls] Witnesses:

EMILE RICHARD, ADoLPHE Bisson. 

